<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  <script src="lib/vue.global.js"></script>
</head>
<body>
  <div id="root"></div>
</body>
<script>
  const { createApp } = window.Vue

  const app = createApp({
    setup(props) {
      const count = {
        value: 100
      }

      const handler = {

      }
      // Proxy 是一个对象，它包装了另一个对象，并允许你拦截对该对象的任何交互
      const proxy = new Proxy(count, handler)

      console.log(proxy.value) // { value: 100 }
    }
  })
  app.mount('#root')
</script>
</html>